big busted party dress?

Oh mighty style and beauty experts please help me!I'm a guest at a big family wedding 6 weeks from now and I am having a terrible time finding a dress/ outfit. It's a later afternoon to evening job, 4 course meal, castle and big banker types. DH is best man.I have a 52/53 inch bust in a bra (but a size 18 bottom half)and I'm about 5"4. Dark hair and eyes and luminously pale skin.I was thinking about getting this but it's not available in my size any more so I have no idea where to go. I've checked monsoon, evans, everywhere that I can think of that might have something! My total budget including shoes is about £150.Shoes need to be available in a 6 wide fit/ extra wide fit and wedge heel or flats (I can't wear heels really)Where can I get something suitable? It's too late for custom made and I have no idea where I can buy something nice in my size!

A petticoat is always good, love the look they give. One would balance your top half beautifully and make your waist tiny too. But, that said, it's in no way essential, the dresses are lovely without too. If a full on petticoat is too much for your taste, you might like the tara starlet ones, they add body and movement without masses of fullness.

I love the swing dress! I've ordered the first alexon one to come tomorrow and I'm now ordering this which I thought I could wear with these shoes Mumsnet saves the day- as always... Do you think I 'll need a petticoat under the swing dress?

I'm a 34H and I'm tight with money. I just stick to Ebay and jersey dresses from charity shops ect, I never wear things with vertical seams under the bust ect. However people have suggested bravissimo for me. I looked online and their stuff wasn't cheap, about £40-£70 for one dress so I was put off, but their stuff was nice and they cater to big breasted women. Their clothes make is called 'pepperberry'. Look them up.

The corsage dress is very similar to the mother of the groom outfit so no good.The polish site is a real find- loads of great stuff! But that gorgeous dress is sold out and there's nothing there in my size! I'm feeling a bit cursed I have to say... Thanks for everyone's hard work!

Excellent. It seems to be much cheaper than pepper berry and looks like a good range of basics.

I generally find pepper berry more of a miss than a hit these days. When it used to just be bravissimo and they started doing a few dresses they were lovely and in fact I still wear those regularly too. The new pepper berry stuff seems a bit cheap and and aimed at an older market too.

The quality is really good OrangeLily. Nice range of basics I think with a few styles a bit of the dated side but more hits than misses. I had a wrap top from there recently I had to fix at the seam but I may have put a lot of pressure on it when tying it up!I've had a few things from bravissimo/pepperberry and imho biubiu is much better quality material and better made.The postage isn't too bad, prices are cheap enough to make it worthwhile. I haven't had to send anything back yet though.

I like all of those cece, but I don't think they'll fit- the white rose one has stretch in the fabric but all the ones you linked to have no elastane- an alexon 22 is a bit smaller than my boobs so it has to have elastane to fit. I'd need a 24 in the ones you linked to, and alexon doesn't go up to a 24. The the pretty one is my favourite! Such a gorgeous pattern